Chain-end functionalized poly(ethykene oxide) and process for the preparation of a nano-sized transition metal or metal salt using the same
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United States of America Patent
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Apr 14, 2015
Grant Date -
Jun 4, 2009
app pub date -
Jul 6, 2006
filing date -
Jul 7, 2005
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Abstract
There is provided a novel chain-end functionalized PEO of formulas (I) to (IV) prepared via living anionic polymerization and chain-end functionalization, as well as a simple method of preparing nano-sized transition metal or metal salt particles using the same, which can be readily stabilized even in an aqueous medium. The water-soluble PEO-based polymers having various functional groups (including a drug group such as vitamin and anti-cancer agent) and the process of preparing nano-sized transition metal or metal salt particles using the same can be advantageously used in the development of new materials for drug delivering system and imaging, e.g., a contrast agent and an anti-cancer agent simultaneously.
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